[Lldb-commits] [lldb] [lldb] Add frame recognizers for libc++ `std::invoke` (PR #105695)
Petr Hosek via lldb-commits
lldb-commits at lists.llvm.org
Sun Aug 25 22:02:31 PDT 2024
================
@@ -53,10 +54,32 @@ class LibCXXFrameRecognizer : public StackFrameRecognizer {
public:
LibCXXFrameRecognizer()
- : m_hidden_function_regex(
- R"(^std::__1::(__function.*::operator\(\)|__invoke))"
- R"((\[.*\])?)" // ABI tag.
- R"(( const)?$)"), // const.
+ : m_hidden_regex{
+ // internal implementation details of std::function
+ // std::__1::__function::__alloc_func<void (*)(), std::__1::allocator<void (*)()>, void ()>::operator()[abi:ne200000]
+ // std::__1::__function::__func<void (*)(), std::__1::allocator<void (*)()>, void ()>::operator()
+ // std::__1::__function::__value_func<void ()>::operator()[abi:ne200000]() const
+ RegularExpression{""
+ R"(^std::__[0-9]*::)" // Namespace.
+ R"(__function::.*::operator\(\))"
+ R"((\[.*\])?)" // ABI tag.
+ R"(( const)?$)"}, // const.
+ // internal implementation details of std::invoke
+ // std::__1::__invoke[abi:ne200000]<void (*&)()>
+ RegularExpression{
+ R"(^std::__[0-9]*::)" // Namespace.
+ R"(__invoke)"
----------------
petrhosek wrote:
libc++ ABI namespace doesn't have to be just a number, it can be any [string that starts with `__`](https://github.com/llvm/llvm-project/blob/c557d8520413476221a4f3bf2b7b3fed17681691/libcxx/CMakeLists.txt#L197). For example, in some of our Google projects we use `__ktl` and `__pw`. [libFuzzer uses `__Fuzzer`](https://github.com/llvm/llvm-project/blob/52ae891036e3ab1f668eb103c46ca57257901c6b/compiler-rt/lib/fuzzer/CMakeLists.txt#L166) in its internal libc++ build.
https://github.com/llvm/llvm-project/pull/105695
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